Year	% of working-age population
1960	54.5441212810603
1961	53.81937825538423
1962	52.188791371583434
1963	49.86428843240376
1964	47.70994329394137
1965	46.196720349891834
1966	45.11192809450075
1967	44.44805632477744
1968	44.316251912160695
1969	44.289593772681336
1970	44.3626109340029
1971	44.59645165558129
1972	45.134294514269484
1973	45.82457542326748
1974	46.46472469259885
1975	47.02406041969003
1976	47.4623600936557
1977	47.80074229532559
1978	48.00930490675715
1979	48.06229839064369
1980	47.91884078291385
1981	47.984864117002786
1982	47.90310583914047
1983	47.36683454836315
1984	46.844560673646534
1985	46.357000399148845
1986	45.811039543091326
1987	45.16629442451141
1988	44.47868211039862
1989	43.840721738221525
1990	43.41753659480021
1991	43.25019654954507
1992	43.26612922725756
1993	43.3758439665048
1994	43.62273049255088
1995	43.99677467055969
1996	44.526523789626424
1997	45.206278340865786
1998	45.92037063035303
1999	46.636539501340344
2000	47.44341617894223
2001	48.41404601567253
2002	49.40567560561877
2003	50.27333656036219
2004	51.08520629254553
2005	52.089533387486895
2006	53.39086012472536
2007	54.80989934326889
2008	56.18023679447223
2009	57.39122450537374
2010	58.23017247879518
2011	58.9460464506961
2012	60.39257996973667
2013	62.55846371237689
2014	64.80144362729122
2015	66.67134008694345
2016	68.0418240014599
2017	69.10469524036847
2018	69.90120632924632
2019	70.50839935614171
2020	70.93691478668688
2021	71.1187680312857
2022	71.07846424042084
2023	71.04694577859631